Cayo Piñerito is a island located in Ceiba County, Puerto Rico. It appears on the Isla De Vieques West USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 0.00 feet (0.00 m) above sea level. The nearest populated place is Brisas de Ceiba I, approximately 3.2 miles to the WNW.